Add in leaf blowers and vacuums, chain saws, edgers and trimmers - and the amount of volatile organic compounds emitted comes to 22 tons per day - more than is put out by all the aircraft that fly over Los Angeles and Orange counties and parts of San Bernardino and Riverside counties.

Attend and be entertained with humor as Globe reporter Geoff Edgers explores the art of creating successful TV comedy with actor and writer Chris Elliott ("Get a Life," "There's Something About Mary") and Alan Zweibel, one of the original "Saturday Night Live" writers.

In a voluntary program approved Friday by the South Coast Air Quality Management District's governing board, businesses would offer incentives to consumers in trade for gas-powered lawn mowers, leaf blowers and vacuums, chain saws, edgers and trimmers.

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